1. Introduction2. Classification and new names3. Distribution3.1. Geographical sequence3.2. Abbreviations Canada and USA3.3. Subdivision of present-day Russia3.4. Abbreviations Australia4. Gender5. References5.1. Printed catalogues5.2. C.P. Alexander
The reference database contains 7082 references. It can be consulted by clicking the Literature tab at the top of the CCW.
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